/*
 *	Copyright (c) 2009, libBasement
 *	All rights reserved.
 *	
 *	Redistribution and use in source and binary forms, with or without modification,
 *	are permitted provided that the following conditions are met:
 *	
 *	Redistributions of source code must retain the above copyright notice,
 *	this list of conditions and the following disclaimer.
 *	Redistributions in binary form must reproduce the above copyright notice,
 *	this list of conditions and the following disclaimer in the documentation
 *	and/or other materials provided with the distribution.
 *	Neither the name of the <ORGANIZATION> nor the names of its contributors may
 *	be used to endorse or promote products derived from this software without
 *	specific prior written permission.
 *	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *	AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 *	THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *	ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
 *	FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 *	(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *	LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *	ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *	SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef BNull_h
#define BNull_h 1

#include <BObject.h>
#include <BString.h>

namespace Basement
{
	class Null : public Object
	{
		__BObjectStandardFunctions(Null);
		
		virtual Object *retain() { return this; }
		virtual Integer retainCount() { return INT_MAX; }
		virtual void release() { }
		virtual Object *autorelease() { return this; }
	public:
		static Null *null();
		
		virtual String *description() { return $("<null>"); };
		virtual bool isEqualTo(Object *other) { return static_cast<Null *> (other) == this; }
	};
}

#endif /* BNull_h */
